lnx-ps2.c File Reference

#include "inputstr.h"
#include <X11/Xos.h>
#include <errno.h>
#include <termios.h>
#include "dmxinputinit.h"
#include "lnx-ps2.h"

Data Structures
struct	_myPrivate
Defines
#define	GETPRIV
#define	LOG0(f)   dmxLog(dmxDebug,f)
#define	LOG1(f, a)   dmxLog(dmxDebug,f,a)
#define	LOG2(f, a, b)   dmxLog(dmxDebug,f,a,b)
#define	LOG3(f, a, b, c)   dmxLog(dmxDebug,f,a,b,c)
#define	FATAL0(f)   dmxLog(dmxFatal,f)
#define	FATAL1(f, a)   dmxLog(dmxFatal,f,a)
#define	FATAL2(f, a, b)   dmxLog(dmxFatal,f,a,b)
#define	MOTIONPROC   dmxMotionProcPtr
#define	ENQUEUEPROC   dmxEnqueueProcPtr
#define	CHECKPROC   dmxCheckSpecialProcPtr
#define	BLOCK   DMXBlockType
#define	PRESS(b)
#define	RELEASE(b)
Typedefs
typedef struct _myPrivate	myPrivate
Functions
static int	ps2LinuxReadBytes (int fd, unsigned char *buf, int len, int min)
static void	ps2LinuxButton (DevicePtr pDev, ENQUEUEPROC enqueue, int buttons, BLOCK block)
void	ps2LinuxRead (DevicePtr pDev, MOTIONPROC motion, ENQUEUEPROC enqueue, CHECKPROC checkspecial, BLOCK block)
void	ps2LinuxInit (DevicePtr pDev)
int	ps2LinuxOn (DevicePtr pDev)
void	ps2LinuxOff (DevicePtr pDev)
static void	ps2LinuxGetMap (DevicePtr pDev, unsigned char *map, int *nButtons)
void	ps2LinuxVTPreSwitch (pointer p)
void	ps2LinuxVTPostSwitch (pointer p)
pointer	ps2LinuxCreatePrivate (DeviceIntPtr pMouse)
void	ps2LinuxDestroyPrivate (pointer priv)
void	ps2LinuxGetInfo (DevicePtr pDev, DMXLocalInitInfoPtr info)

---

Detailed Description

This code implements a low-level device driver for a serial MS mouse. The code is derived from code by Keith Packard (see the source code for complete references).

---

Define Documentation

#define BLOCK   DMXBlockType

#define CHECKPROC   dmxCheckSpecialProcPtr

#define ENQUEUEPROC   dmxEnqueueProcPtr

#define FATAL0

(

f

)

dmxLog(dmxFatal,f)

#define FATAL1	(	f,
		a		)	dmxLog(dmxFatal,f,a)

#define FATAL2	(	f,
		a,
		b		)	dmxLog(dmxFatal,f,a,b)

#define GETPRIV

Value:

myPrivate *priv                            \
                      = ((DMXLocalInputInfoPtr)(pDev->devicePrivate))->private

#define LOG0

(

f

)

dmxLog(dmxDebug,f)

#define LOG1	(	f,
		a		)	dmxLog(dmxDebug,f,a)

#define LOG2	(	f,
		a,
		b		)	dmxLog(dmxDebug,f,a,b)

#define LOG3	(	f,
		a,
		b,
		c		)	dmxLog(dmxDebug,f,a,b,c)

#define MOTIONPROC   dmxMotionProcPtr

#define PRESS

(

b

)

Value:

do {                                                 \
        enqueue(pDev, ButtonPress, 0, 0, NULL, block);   \
    } while (0)

#define RELEASE

(

b

)

Value:

do {                                                 \
        enqueue(pDev, ButtonRelease, 0, 0, NULL, block); \
    } while (0)

---

Typedef Documentation

typedef struct _myPrivate myPrivate

---

Function Documentation

static void ps2LinuxButton	(	DevicePtr	pDev,
		ENQUEUEPROC	enqueue,
		int	buttons,
		BLOCK	block
	)			[static]

References GETPRIV, PRESS, and RELEASE.

Referenced by ps2LinuxRead().

pointer ps2LinuxCreatePrivate

(

DeviceIntPtr

pMouse

)

Create a private structure for use within this file.

References _myPrivate::fd, and _myPrivate::pMouse.

void ps2LinuxDestroyPrivate

(

pointer

priv

)

Destroy a private structure.

void ps2LinuxGetInfo	(	DevicePtr	pDev,
		DMXLocalInitInfoPtr	info
	)

Fill the info structure with information needed to initialize pDev.

References _DMXLocalInitInfo::buttonClass, _DMXLocalInitInfo::map, _DMXLocalInitInfo::maxres, _DMXLocalInitInfo::maxval, _DMXLocalInitInfo::minres, _DMXLocalInitInfo::minval, _DMXLocalInitInfo::numButtons, _DMXLocalInitInfo::numRelAxes, ps2LinuxGetMap(), _DMXLocalInitInfo::ptrFeedbackClass, _DMXLocalInitInfo::res, and _DMXLocalInitInfo::valuatorClass.

static void ps2LinuxGetMap	(	DevicePtr	pDev,
		unsigned char *	map,
		int *	nButtons
	)			[static]

Referenced by ps2LinuxGetInfo().

void ps2LinuxInit

(

DevicePtr

pDev

)

Initialize pDev.

References FATAL1, GETPRIV, and O_NONBLOCK.

Referenced by ps2LinuxOn().

void ps2LinuxOff

(

DevicePtr

pDev

)

Turn pDev off (i.e., stop taking input from pDev).

References GETPRIV.

int ps2LinuxOn

(

DevicePtr

pDev

)

Turn pDev on (i.e., take input from pDev).

References GETPRIV, and ps2LinuxInit().

void ps2LinuxRead	(	DevicePtr	pDev,
		MOTIONPROC	motion,
		ENQUEUEPROC	enqueue,
		CHECKPROC	checkspecial,
		BLOCK	block
	)

Read an event from the pDev device. If the event is a motion event, enqueue it with the motion function. Otherwise, check for special keys with the checkspecial function and enqueue the event with the enqueue function. The block type is passed to the functions so that they may block SIGIO handling as appropriate to the caller of this function.

References GETPRIV, ps2LinuxButton(), and ps2LinuxReadBytes().

static int ps2LinuxReadBytes	(	int	fd,
		unsigned char *	buf,
		int	len,
		int	min
	)			[static]

Referenced by ps2LinuxRead().

void ps2LinuxVTPostSwitch

(

pointer

p

)

Currently unused hook called after returning from a VT switch.

void ps2LinuxVTPreSwitch

(

pointer

p

)

Currently unused hook called prior to an VT switch.